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Earthing transformers

Earthing transformers are classified as standard reactors. An earthing transformer (neutral coupler) is a three-phase transformer connected to the power system to provide a neutral connection for earthing, either directly or via impedance. The earthing transformers may in addition supply a local auxiliary load.

The earthing transformer creates a neutral point for a network. ZN connection is usually applied. Z connection provides linear and specified zero sequence impedance. YN+d can also be applied.

Product scope

  • Voltage level: up to 170 kV

Why Hitachi Energy?

  • Optimized design fully in line with substation system design
  • Lots of references in different voltage systems and substation configurations

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